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IMPROVE Report 2006IMPROVE Report 2006
L. Debell, K. Gebhart, B. Schichtel L. Debell, K. Gebhart, B. Schichtel and W. Malmand W. Malm
IMPROVE Report OutlineIMPROVE Report Outline Section 1: IMPROVE Data summariesSection 1: IMPROVE Data summaries
Chapter 1: Network OverviewChapter 1: Network Overview Chapter 2: IMPROVE-STN Data ComparabilityChapter 2: IMPROVE-STN Data Comparability Chapter 3: Spatial trends in the annual average aerosol Chapter 3: Spatial trends in the annual average aerosol
concentrations concentrations and extinction coefficientsand extinction coefficients Chapter 4: Spatial Variability of monthly patterns in aerosol Chapter 4: Spatial Variability of monthly patterns in aerosol
concentrations and extinction coefficientsconcentrations and extinction coefficients Chapter 5: Trends in aerosol concentrations and extinction Chapter 5: Trends in aerosol concentrations and extinction
coefficientscoefficients Section 2: Special Study SummariesSection 2: Special Study Summaries
Chapter 1: BRAVO Executive Summary and Link to full reportChapter 1: BRAVO Executive Summary and Link to full report Chapter 2: Yosemite Executive Summary and Link to full reportChapter 2: Yosemite Executive Summary and Link to full report Chapter 3: Coarse Mass StudyChapter 3: Coarse Mass Study Chapter 4: IMPROVE Algorithm ReviewChapter 4: IMPROVE Algorithm Review
Section 3: QA StudiesSection 3: QA Studies Chapter 1: Historical Data QA/QC Review Chapter 1: Historical Data QA/QC Review Chapter 2: Denuder StudyChapter 2: Denuder Study
Other workOther work Carbon 12/14 studyCarbon 12/14 study Hygroscopicity of Smoke and Carbon AerosolsHygroscopicity of Smoke and Carbon Aerosols
IMPROVE NetworkIMPROVE Network
Fusion of IMPROVE & STN Fusion of IMPROVE & STN NetworksNetworks
(p.NO3+s.NO3)/2
rela
tive
diff
ere
nce
, d
i(p
.NO
3,s
.NO
3)
0 2 4 6 8
-4-3
-2-1
01
(p.OC+s.OC)/2
rela
tive
diff
ere
nce
, d
i(p
.OC
,s.O
C)
0 5 10 15
-2-1
01
(p.Si+s.Si)/2
rela
tive
diff
ere
nce
, d
i(p
.Si,s
.Si)
0.0 0.2 0.4 0.6 0.8 1.0 1.2
-1.0
-0.5
0.0
0.5
1.0
(p.S+s.S)/2
rela
tive
diff
ere
nce
, d
i(p
.S,s
.S)
0 1 2 3 4 5
-0.4
-0.2
0.0
0.2
0.4
Si OC
S
Relative Errors from Six Collocated IMPROVE Monitors
Average Concentration, (µg/m3)
Rel
ativ
e E
rror
[(x
i – y
i) / (
x i +
y i)/
2]
NO3
Relative Errors from Six Collocated IMPROVE & STN Monitors
IMPROVE S
ST
N S
0 2 4 6 8
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
S
IMPROVE NO3
ST
N N
O3
0 2 4 6 8 10 12 14
-8-6
-4-2
0
NO3IMPROVE Si
ST
N S
i
0 1 2 3 4 5
-2-1
01
2
Si
IMPROVE OC
ST
N O
C.a
dj
0 5 10 15
-10
01
02
03
0 OC(Blank corrected STN OC data)
Average Concentration, (µg/m3)
Rel
ativ
e E
rror
(IM
PR
OV
E –
ST
N)/
Avg
)(
2*)()(_
YX
YXXrdO
))(_var(*2yUncertaint siteXrdO
1-1- Uncertainty Uncertainty
IMPROVEIMPROVEin-networkin-network
IMPROVE-STNIMPROVE-STNcross networkcross network
AlAl 19%19% 33%33%
CaCa 7%7% 28%28%
FeFe 5%5% 21%21%
SiSi 5%5% 11%11%
TiTi 4%4% 25%25%
SS 3%3% 11%11%
SO4SO4 2%2% 5%5%
NO3NO3 5%5% 14%14%
ECEC 7%7% 24%24%
OCOC 7%7% 36%36%
blank-blank-
correctedcorrected STN OC STN OC datadata
NANA 8%8%
Comparability of IMPROVE and STN Measurements
X and Y represent the paired annual means
Where:
Precision in Annual Average Concentrations calculated from collocated data
•Note, these uncertainties do not contain the error due to a systematic bias
IMPROVE Reconstructed Fine MassIMPROVE Reconstructed Fine Mass
IMPROVE & STN Reconstructed Fine IMPROVE & STN Reconstructed Fine MassMass
IMPROVE Ammonium Sulfate MassIMPROVE Ammonium Sulfate Mass
IMPROVE & STN Ammonium Sulfate IMPROVE & STN Ammonium Sulfate MassMass
IMPROVE Organic Carbon MassIMPROVE Organic Carbon Mass
IMPROVE & STN Organic Carbon MassIMPROVE & STN Organic Carbon Mass
IMPROVE Ammonium Nitrate MassIMPROVE Ammonium Nitrate Mass
IMPROVE & STN Ammonium Nitrate IMPROVE & STN Ammonium Nitrate MassMass
IMPROVE Fine Soil MassIMPROVE Fine Soil Mass
IMPROVE & STN Fine Soil MassIMPROVE & STN Fine Soil Mass
IMPROVE Particulate Light ExtinctionIMPROVE Particulate Light Extinction
IMPROVE DeciviewsIMPROVE Deciviews
IMPROVIMPROVE E
Monthly Monthly Fine Fine Mass Mass
BudgetsBudgets
STN STN Monthly Monthly
Fine Fine Mass Mass
BudgetsBudgets
IMPROVE Monthly Fine Mass IMPROVE Monthly Fine Mass BudgetsBudgets
IMPROVE Monthly Fine Mass IMPROVE Monthly Fine Mass BudgetsBudgets
Trends in the Best and Trends in the Best and Worst Haze DaysWorst Haze Days
Clear Day Deciview Trend 1995-2004Clear Day Deciview Trend 1995-2004
Im proving Trend, p<=0.05
Im proving Trend, 0.05<p<=0.15
Degrading Trend, 0.05<p<=0.15
Degrading Trend, p<=0.05
No Trend
Trends in Haze Index (Deciview) on Clearest Days, 1995-2004
06/13/2006
Acadia
Badlands
Bandel ier
Big Bend
Bryce Canyon
Bridger
Brigantine
Canyonlands
Chassahowitzka
Chiricahua
Columbia River
Crater Lake
Dol ly Sods
Gi la Cl i ff
Glacier
Great Basin
Grand Canyon
Great Sand Dunes
Great Smoky Mtns
Guadalupe Mtns
Jarbidge
Lassen Volcanic
Lye Brook
Mammoth CaveMesa Verde
Moosehorn
Mount Rainier
Mt. Zirkel
Okefenokee
Petri fied Forest
Pinnacles
Redwood
Cape Romain
Rocky Mountain
San Gorgonio
SequoiaShenandoah
Shining Rock
Snoqualm ie Pass
T hree Sisters
T onto
Upper Buffalo
Washington
Weminuche
Yel lowstone
Yosemite
Denal i
http://www2.nature.nps.gov/air/Pubs/pdf/gpra/Gpra2005_Report_03202006_Final.pdf
Hazy Day Deciview Trend 1995-2004Hazy Day Deciview Trend 1995-2004
http://www2.nature.nps.gov/air/Pubs/pdf/gpra/Gpra2005_Report_03202006_Final.pdf
Im proving Trend, p<=0.05
Im proving Trend, 0.05<p<=0.15
Degrading Trend, 0.05<p<=0.15
Degrading Trend, p<=0.05
No Trend
Trends in Haze Index (Deciview) on Haziest Days, 1995-2004
06/13/2006
Acadia
Badlands
Bandel ier
Big Bend
Bryce Canyon
Bridger
Brigantine
Canyonlands
Chassahowitzka
Chiricahua
Columbia River
Crater Lake
Dol ly Sods
Gi la Cl i ff
Glacier
Great Basin
Grand Canyon
Great Sand Dunes
Great Smoky Mtns
Guadalupe Mtns
JarbidgeLassen Volcanic
Lye Brook
Mammoth CaveMesa Verde
Moosehorn
Mount Rainier
Mt. Zirkel
Okefenokee
Petri fied Forest
Pinnacles
Redwood
Cape Romain
Rocky Mountain
San Gorgonio
Sequoia
Shenandoah
Shining Rock
Snoqualm ie Pass
T hree Sisters
T onto Upper Buffalo
Washington
Weminuche
Yel lowstone
Yosemite
Denal i
Speciated Coarse MassSpeciated Coarse Mass
Coarse MassCoarse Mass
Fine MassFine Mass
Coarse Mass FractionCoarse Mass Fraction
Fine Mass FractionFine Mass Fraction
Review of Aerosol Optical Review of Aerosol Optical Properties Derived from Properties Derived from IMROVE Particulate and IMROVE Particulate and
Optical DataOptical Data
Inorganic Light Extinction Inorganic Light Extinction Efficiencies Efficiencies
Organic bext efficiency = (density inorganic / density organic) * inorganic bext efficiency
Coarse Mass EfficiencyCoarse Mass Efficiency
•Derived from Transmissometer and Particulate data
Other NPS/CIRA WorkOther NPS/CIRA Work
Seasonal Contemporary and Fossil C Seasonal Contemporary and Fossil C ((g/mg/m33))
The error bars represent the range in six day The error bars represent the range in six day concentrationsconcentrations
Seasonal Fraction Contemporary CarbonSeasonal Fraction Contemporary Carbon
The error bars represent the fraction The error bars represent the fraction contemporary range contemporary range
Urban ExcessUrban Excess Puget Sound, WA - Mount Rainier, WA Puget Sound, WA - Mount Rainier, WA
Puget Sound fossil carbon is primarily due to local Puget Sound fossil carbon is primarily due to local sources during winter and summersources during winter and summer
Summer biogenic carbon is regionally distributedSummer biogenic carbon is regionally distributed ~40% of the winter urban excess is biogenic carbon ~40% of the winter urban excess is biogenic carbon
Not all biogenic carbon is “natural”Not all biogenic carbon is “natural”
Summer
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5T
otal
Car
bon
Fos
sil
Bio
geni
c
Car
bo
n ( g
/m3 )
Excess:
1.8 g/m3
44%
Excess:
1.56 g/m3
77%
Excess:
0.23 g/m3
11%
Winter
0
1
2
3
4
5
6
To
tal
Ca
rbo
n
Fo
ssil
Bio
ge
nic
Ca
rbo
n ( g
/m3)
Excess:
4.1 g/m3
76%
Excess:
2.4 g/m3
98%
Excess:
1.66 g/m3
56%
Urban ExcessUrban ExcessPhoenix, AZ – Tonto, AZPhoenix, AZ – Tonto, AZ
Phoenix fossil carbon is primarily due to local sources Phoenix fossil carbon is primarily due to local sources during winter and summerduring winter and summer
Summer biogenic carbon is regionally distributedSummer biogenic carbon is regionally distributed About half of the winter urban excess is biogenic About half of the winter urban excess is biogenic
carbon carbon Not all biogenic carbon is “natural”Not all biogenic carbon is “natural”
Summer
00.5
11.5
22.5
33.5
44.5
5
Tot
alC
arbo
n
Fos
sil
Bio
geni
c
Car
bo
n (
g/m
3)
Excess:
1.94 g/m3
45%
Excess:
1.53 g/m3
81%
Excess:
0.42 g/m3
17%
Winter
0
2
4
6
8
10
12
Tot
alC
arbo
n
Fos
sil
Bio
geni
c
Car
bo
n ( g
/m3 )
Excess:
9.6 g/m3
89%
Excess:
5.1 g/m3
94%
Excess:
4.5 g/m3
84%
Hygroscopicity of SmokeHygroscopicity of Smoke
Finished
IMPROVE Light Absorbing Carbon MassIMPROVE Light Absorbing Carbon Mass
IMPROVE & STN Light Absorbing IMPROVE & STN Light Absorbing CarbonCarbon
CM
%SO4
% SO4
% OMC
% OMC
% NO3
% NO3
% LAC
% LAC
% Soil
% Soil
SO4 extinction
OMC extinction
NO3 extinction
LAC extinction
Soil extinction
CM extinction
STN
IMPROVE
East
STN
IMPROVE
IMPROVE
STN
Northwest
Southwest
STN
IMPROVE
STN
IMPROVE
East
STN
IMPROVE
Northwest
Southwest